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Proton dripping tests a fundamental force in nature(PhysOrg.com) -- Like gravity, the strong interaction is a fundamental force of nature. It is the essential "glue" that holds atomic nuclei&#151;composed of protons and neutrons&#151; together to form atoms, the building blocks of nearly all the visible matter in the universe. Despite its prevalence in nature, researchers are still searching for the precise laws that govern the strong force. However, the recent discovery of an extremely exotic, short-lived nucleus called fluorine-14 in laboratory experiments may indicate that scientists are gaining a better grasp of these rules.http://phys.org/news224260055.html
PhysicsTue, 10 May 2011 16:20:01 ESTnews224260055Rotating light provides indirect look into the nucleusNuclear magnetic resonance (NMR) is one of the best tools for gaining insight into the structure and dynamics of molecules because nuclei in atoms within molecules will behave differently in a variety of chemical environments. Nuclei can be thought of as tiny compasses that align when placed in the field of a strong magnet. Similar to magnetic resonance imaging (MRI), conventional NMR uses short pulses of radio waves to drive nuclei away from equilibrium and a 'signal' emerges as nuclei slowly realign with the field.http://phys.org/news210339746.html
PhysicsTue, 30 Nov 2010 11:42:37 ESTnews210339746Early Universe was a liquid: First results from the Large Hadron Collider's ALICE experiment(PhysOrg.com) -- In an experiment to collide lead nuclei together at CERN's Large Hadron Collider physicists from the ALICE detector team including researchers from the University of Birmingham have discovered that the very early Universe was not only very hot and dense but behaved like a hot liquid.http://phys.org/news209745245.html
PhysicsTue, 23 Nov 2010 14:34:29 ESTnews209745245Grant advances quark-gluon plasma studiesRice University's Bonner Nuclear Lab has won a $1.175 million grant that will support its research on high-density and hot nuclear matter.http://phys.org/news205690593.html
PhysicsThu, 07 Oct 2010 17:16:51 ESTnews205690593Researchers advance understanding of structural change in cancer cells(PhysOrg.com) -- A method developed by a University of Maine mathematician to get a much more detailed look at cellular morphology has the potential to aid in early cancer detection.http://phys.org/news205577458.html
Medicine & HealthWed, 06 Oct 2010 09:51:28 ESTnews205577458Wallflowers become extroverts in a crowdWhile it's long been said that two's company and three's a crowd, that's just how mesons like it. A recent experiment at DOE's Jefferson Lab demonstrates that these subatomic particles engage more with other particles when in a crowd. http://phys.org/news204872864.html
PhysicsTue, 28 Sep 2010 06:08:01 ESTnews204872864A closer look at ring opening: Electron diffraction studies of photoswitchable molecules(PhysOrg.com) -- We use a switch to turn lights off and on; however, light can also act as a switch itself, for example when molecules change their structure upon irradiation. Photoswitchable molecules are potentially interesting for use in holographic data storage, as molecular switches for nanomachines, or for switching biological functions in the biosciences. In order to tailor these molecules for different applications, it is necessary to have a comprehensive understanding of the underlying reaction mechanisms.http://phys.org/news203247492.html
ChemistryThu, 09 Sep 2010 10:38:32 ESTnews203247492Cosmic accelerators discovered in our galaxy by UCLA physicists, Japanese colleaguePhysicists from UCLA and Japan have discovered evidence of "natural nuclear accelerators" at work in our Milky Way galaxy, based on an analysis of data from the world's largest cosmic ray detector.http://phys.org/news201279930.html
Astronomy & SpaceTue, 17 Aug 2010 16:05:58 ESTnews201279930Clouds + Mineral Dust = RainA team of atmospheric scientists, including Dr. Xiaohong Liu of Pacific Northwest National Laboratory (PNNL), found a critical link between the size of dust particles in clouds and their likelihood to produce rain. http://phys.org/news201272468.html
EarthTue, 17 Aug 2010 14:20:01 ESTnews201272468Physicists develop model that pushes limits of quantum theory, relativityAll of the matter in the universe -- everything we see, feel and smell -- has a certain predictable structure, thanks to the tiny electrons spinning around their atomic nuclei in a series of concentric shells or atomic levels. A fundamental tenet of this orderly structure is that no two electrons can occupy the same atomic level (quantum state) at the same time—a principle called the Pauli exclusion principle, which is based on Albert Einstein's theory of relativity and quantum theory.http://phys.org/news200060488.html
PhysicsTue, 03 Aug 2010 13:21:42 ESTnews200060488Nuclear physics incorporates a 'strange' flavorCalculating the binding energy between hyperon particles contributes to understanding a new type of neutron star.http://phys.org/news199715582.html
PhysicsFri, 30 Jul 2010 13:33:44 ESTnews199715582Rain of giant gas clouds create active galactic nucleiGalaxies like our own were built billions of years ago from a deluge of giant clouds of gas, some of which continue to rain down. Now new calculations tie the rain of giant clouds of gas to active galactic nuclei (AGN), the extremely bright centers of some galaxies. If a gas cloud with millions of times more mass than our Sun wanders too close to the center of a galaxy, it can either be consumed by the supermassive black hole that lurks there or, through shocks and collapse, give birth to new stars.http://phys.org/news197830962.html
Astronomy & SpaceThu, 08 Jul 2010 18:30:02 ESTnews197830962Gene therapy a step closer to mass productionEU project has made great advances in the development of novel non-viral carriers able to introduce genetic material into the target cells. These new agents, derivatives of cationic amphiphilic 1,4-dihydropyridine (1,4-DHP), avoid the problems of the recipient's immune system reacting against a viral carrier. The project partners have developed methods to produce them in large amounts, which solves another of the problems with viral delivery. But the greatest advantage is that the new compounds are significantly more effective at delivering DNA into cell nuclei than other standard synthetic carriers; increasing the chance of the DNA successfully controlling the defective genes, and the disease.http://phys.org/news196598983.html
Medicine & HealthThu, 24 Jun 2010 11:52:42 ESTnews196598983HESS-II: a new camera for exploring the violent UniverseHESS, one of the world's best-performing ground-based gamma ray detectors, will soon boast a fifth telescope that will double its potential for making new discoveries. The telescope will be equipped with a camera designed and built by French scientists as part of the HESS joint project, which involves several CNRS laboratories. http://phys.org/news196000286.html
Astronomy & SpaceThu, 17 Jun 2010 13:31:59 ESTnews196000286Amount of dust, pollen matters for cloud precipitation, climate changeA lot of large particles of dust and pollen in the atmosphere may make your nose twitch, but they can lead directly to greater precipitation in clouds, Colorado State University atmospheric scientists have discovered for the first time.http://phys.org/news195145467.html
EarthMon, 07 Jun 2010 16:04:51 ESTnews195145467On the deceleration behaviour of black holes(PhysOrg.com) -- Researchers use the concept of "anti-kick" to explain why the speed suddenly decreases after the collision of such exotic objects.http://phys.org/news194881040.html
PhysicsFri, 04 Jun 2010 15:10:01 ESTnews194881040Single-particle resonances in a deformed relativistic potentialA variety of structural phenomena in exotic short-lived nuclei far from stability, especially in systems close to the particle drip lines, challenge model descriptions based on the self-consistent mean-field approximation. Because the Fermi level in a drip-line nucleus is very close to the continuum, both weakly-bound states and low-lying positive energy single-particle resonant states are essential to determine the ground state properties of such systems. http://phys.org/news194790589.html
PhysicsThu, 03 Jun 2010 13:30:16 ESTnews194790589The turbulent past of the Milky Way's black holeThe supermassive black hole at the center of our Galaxy went through turbulent times over the past centuries. We know this thanks to its surrounding molecular clouds, whose varying X-ray and gamma-ray luminosity reflects a major flare in the past. These findings, obtained by an international team of researchers led by French astrophysicists, are published in The Astrophysical Journal.http://phys.org/news194274365.html
Astronomy & SpaceFri, 28 May 2010 14:06:29 ESTnews194274365Physicists pin down the proton-halo state in Flourine-17A halo nucleus has one or more nucleons that are only weakly bound to the nuclear core. Consequently, they drift far away from it, forming, in effect, a halo. These nuclei are difficult to study because their lives are both short and fragile. The more tools scientists have to calculate the properties of nuclei, the more clearly they can investigate the limits of nuclear existence.http://phys.org/news194099278.html
PhysicsWed, 26 May 2010 13:28:28 ESTnews194099278Supermassive black holes may frequently roam galaxy centersA team of astronomy researchers at Florida Institute of Technology and Rochester Institute of Technology in the United States and University of Sussex in the United Kingdom, find that the supermassive black hole (SMBH) at the center of the most massive local galaxy (M87) is not where it was expected. Their research, conducted using the Hubble Space Telescope (HST), concludes that the SMBH in M87 is displaced from the galaxy center.http://phys.org/news194018924.html
Astronomy & SpaceTue, 25 May 2010 15:09:04 ESTnews194018924New project aims for fusion ignitionRussia and Italy have entered into an agreement to build a new fusion reactor outside Moscow that could become the first such reactor to achieve ignition, the point where a fusion reaction becomes self-sustaining instead of requiring a constant input of energy. The design for the reactor, called Ignitor, originated with MIT physics professor Bruno Coppi, who will be the project's principal investigator.http://phys.org/news192730850.html
PhysicsMon, 10 May 2010 17:21:28 ESTnews192730850Largest atlas of nuclear galactic rings unveiledAn international team of astrophysicists has just unveiled the most complete atlas of nuclear rings, enormous star-forming ring-shaped regions that circle certain galactic nuclei. The catalogue, published in the Monthly Notices of the Royal Astronomical Society, includes 113 such rings in 107 galaxies.http://phys.org/news191765099.html
Astronomy & SpaceThu, 29 Apr 2010 13:30:01 ESTnews191765099How do supermassive black holes get so big?(PhysOrg.com) -- At the center of most galaxies lie supermassive black holes that can grow to become more than a billion times larger than our Sun. However, astrophysicists don’t fully understand the formation and evolution of supermassive black holes - specifically, how swirling gas from the galaxy loses its large angular momentum to allow it to be consumed by the black hole. http://phys.org/news191498072.html
Astronomy & SpaceMon, 26 Apr 2010 10:57:33 ESTnews191498072Pinning Down a Proton: Researchers Develop Method to Describe Binding of Protons and Neutrons(PhysOrg.com) -- A researcher at North Carolina State University has helped to develop a new method for describing the binding of protons and neutrons within nuclei. This method may improve scientists' ability to predict and understand astrophysical reactions within stars.http://phys.org/news190476502.html
PhysicsWed, 14 Apr 2010 15:09:24 ESTnews190476502Researchers discover why atoms in solids show a preference for certain structures(PhysOrg.com) -- Nature likes some symmetries, but dislikes others. Ordered solids often display a so-called 6-fold rotation symmetry. To achieve this kind of symmetry, the atoms in a plane surround themselves with six neighbours in an arrangement similar to that found in honeycombs. As opposed to this, ordered materials with 7-fold, 9-fold or 11-fold symmetries are never observed in nature.http://phys.org/news189163911.html
PhysicsTue, 30 Mar 2010 10:32:59 ESTnews189163911Borexino experiment detects geo-neutrinos(PhysOrg.com) -- The Borexino collaboration of about 80 scientists from six countries, who have been working with a detector buried 1.5 km beneath the Gran Sasso mountain near l'Aquila in Italy have detected geo-neutrinos, which are electron antineutrinos created by radioactive decays inside the Earth's mantle and crust.http://phys.org/news187946006.html
PhysicsTue, 16 Mar 2010 08:14:02 ESTnews187946006Unpacking condensins' function in embryonic stem cellsRegulatory proteins common to all eukaryotic cells can have additional, unique functions in embryonic stem (ES) cells, according to a study in the February 22 issue of the Journal of Cell Biology. If cancer progenitor cells—which function similarly to stem cells—are shown to rely on these regulatory proteins in the same way, it may be possible to target them therapeutically without harming healthy neighboring cells.http://phys.org/news186059375.html
BiologyMon, 22 Feb 2010 11:10:29 ESTnews186059375Black hole spin may create jets that control galaxy(PhysOrg.com) -- Scattered throughout every galaxy are black holes, regions that gobble up matter and energy. Although we can't see black holes, scientists can infer their size, location and other properties by using sensitive telescopes to detect the heat they generate. This heat, which we see as X-rays, is produced as material spirals around a black hole faster and faster until it reaches a point of no return -- the "event horizon" -- from which nothing, not even light, can escape. http://phys.org/news185104066.html
Astronomy & SpaceThu, 11 Feb 2010 09:48:07 ESTnews185104066Surveying the X-ray Sky(PhysOrg.com) -- Astronomers have only modest laboratories to probe the mysteries of the cosmos. Mostly they have to rely on meticulous and clever observations of remote phenomena.http://phys.org/news182439231.html
Astronomy & SpaceMon, 11 Jan 2010 13:36:23 ESTnews182439231Galaxy History Revealed in This Colorful Hubble View (w/ Video)(PhysOrg.com) -- More than 12 billion years of cosmic history are shown in this unprecedented, panoramic, full-color view of thousands of galaxies in various stages of assembly.http://phys.org/news181991747.html
Astronomy & SpaceWed, 06 Jan 2010 09:16:13 ESTnews181991747